EP2133744A1 - Lichtempfindliche harzzusammensetzung - Google Patents
Lichtempfindliche harzzusammensetzung Download PDFInfo
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- EP2133744A1 EP2133744A1 EP08738789A EP08738789A EP2133744A1 EP 2133744 A1 EP2133744 A1 EP 2133744A1 EP 08738789 A EP08738789 A EP 08738789A EP 08738789 A EP08738789 A EP 08738789A EP 2133744 A1 EP2133744 A1 EP 2133744A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
- C08F290/14—Polymers provided for in subclass C08G
- C08F290/148—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
- C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
- C08F299/08—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/48—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
- C08G77/58—Metal-containing linkages
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/14—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/028—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with photosensitivity-increasing substances, e.g. photoinitiators
- G03F7/029—Inorganic compounds; Onium compounds; Organic compounds having hetero atoms other than oxygen, nitrogen or sulfur
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/075—Silicon-containing compounds
- G03F7/0757—Macromolecular compounds containing Si-O, Si-C or Si-N bonds
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/70—Siloxanes defined by use of the MDTQ nomenclature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
Definitions
- the present invention relates to a resin insulating film used in semiconductor devices, multilayer wiring boards and optical materials such as microlenses. More particularly, the present invention relates to a photosensitive resin composition for producing a patterned insulating film preferable for a buffer coat material or rewiring layer of an LSI chip, and to a resin insulating film obtained using the same.
- the performance requirements for insulating materials exemplified by buffer coat materials and rewiring layer materials of LSI chips are becoming increasingly severe with respect to the properties of, for example, higher resolution, low-temperature heat treatment, low stress and low dielectric constant accompanying higher performance levels of LSI.
- stress resistance and heat resistance have decreased, and in response to requirements for higher speeds placed on rewiring Cu layers, the Cu used for rewiring has tended to become thicker due to increased current density. Consequently, in addition to requirements for high resolution, chemical resistance and temperature stress resistance, buffer coat materials and rewiring layer materials are also being required to satisfy requirements with respect to thick film formation ability, flatness, low stress, low dielectric constant and low-temperature heat curing treatment.
- photosensitive polyimides for example, were used as a typical example of an LSI chip buffer coat material.
- Compositions containing a polyimide precursor, having a photopolymerizable double bond in a side chain thereof, and a photopolymerization initiator were widely used as photosensitive polyimides. These compositions were spin-coated onto an LSI wafer followed by crosslinking the double bonds of the side chain in a photo-crosslinking reaction by irradiating with light through a photomask. Subsequently, a pattern was formed during development and simultaneous to decomposing and volatizing the crosslinked chains by heat curing treatment, a patterned insulating film was formed by forming a polyimide structure.
- An insulating film composed of a polyimide formed in this manner has superior heat resistance, chemical resistance and mechanical properties.
- Patent Document 1 a photosensitive silicone compound known as Ormocer One manufactured by Fraunhofer ISC of Germany is disclosed in Patent Document 1 that is obtained by condensing a trialkoxysilane having a photopolymerizable functional group and a diaryl silanediol.
- a composition of this compound and a photopolymerization initiator enables the formation of a negative pattern by irradiating with light, the pattern can be heat-cured at a low temperature of 150°C, and the insulating film after curing has heat resistance equivalent to that of polyimides on the order of 300°C or higher.
- Patent Document 1 discloses (meth)acryloxy groups and styryl groups as examples of photopolymerizable functional groups possessed by the photosensitive silicone compound.
- Patent Document 2 discloses a photopolymerizable or thermal polymerizable silicone resin in the form of a photosensitive silicone compound obtained by reacting vinyl phenyl methyl diethoxysilane having a styryl group and diisobutyl silanediol.
- the inventors of the present invention investigated photosensitive silicon compounds having a styryl group as a photopolymerizable functional group in order to obtain a cured film having a higher refractive index.
- the photopolymerization reaction does not proceed adequately in an air atmosphere, and only films having an extremely low residual film rate were able to be obtained.
- An object of the present invention is to provide a photosensitive resin composition that allows the formation of a photocurable film by irradiating with light in an air atmosphere composed of a photosensitive silicone compound having a styryl group as a photopolymerizable functional group and a photopolymerization initiator.
- a photosensitive resin composition comprising: (A) 100 parts by weight of a photosensitive silicone compound described in (I) below, and (B) 0.1 to 20 parts by weight of a photopolymerization initiator described in (II) below.
- Photosensitive silicon compound obtained by adding to at least one type of silanol compound represented by the following formula (a) (to be referred to as component (a)), a component (b) in the form of at least one type of compound selected from the group consisting of compounds represented by the following general formulas (b1), (b2), (b3) and (b4) (to be referred to as components (b1), (b2), (b3) and (b4)) containing the component (b1) at 10 to 100% in terms of the number of moles thereof, at a ratio of component (a) to component (b) of 40/60 mol% to 60/40 mol%, followed by condensing using a catalyst without aggressively adding water.
- a component (b) in the form of at least one type of compound selected from the group consisting of compounds represented by the following general formulas (b1), (b2), (b3) and (b4) (to be referred to as components (b1), (b2), (b3) and (b4)) containing the component (b1) at
- the number of moles of component (b) (number of moles of component (b1) + the number of moles of component (b2)) + (3/2 x number of moles of component (b3)) + (2 x number of moles of component (b4)).
- R 1 represents at least one type of group selected from the group consisting of a C 1 -C 12 linear alkyl group, C 3 -C 12 branched alkyl group, C 3 -C 12 cyclic alkyl group, C 6 -C 12 aryl group, C 7 -C 12 alkylaryl group and C 7 -C 12 arylalkyl group.
- R 1 may be the same or different.
- R 2 a R 3 b SiX 4-a-b (b1) R 2 represents a substituent represented by the following formula (1) or (2), R 3 represents a C 1 -C 12 hydrocarbon group, X represents a C 1 -C 12 alkyl group, a represents an integer selected from 1 and 2, b represents an integer selected from 0 and 1, and a + b does not exceed 2. In the case a is 2, R 2 may be the same or different.
- Y represents a C 1 -C 12 hydrocarbon group or a C 1 -C 12 hydrocarbon group containing one or more types of elements selected from the group consisting of oxygen, nitrogen, fluorine and sulfur.
- R 4 a R 3 b SiX 4-a-b (b2) R 4 represents one type of group selected from the group consisting of a linear C 1 -C 12 alkyl group, C 3 -C 12 branched alkyl group, C 3 -C 12 cyclic alkyl group, C 6 -C 12 aryl group, C 7 -C 12 alkylaryl group, C 7 -C 12 arylalkyl group, C 2 -C 7 epoxy group or unsaturated double bond-containing hydrocarbon group, C 1 -C 12 amino group-, ureido group- or mercapto group-containing hydrocarbon group, and C 1 -C 12 fluorine-containing hydrocarbon group, R 3 represents a C 1 -C 12 hydrocarbon group, X represents a C 1 -C 12 alkoxy group, a represents an integer selected from 1 and 2, b represents an integer selected from 0 and 1, and a + b does not exceed 2.
- R 4 may be the same or different.
- M 1 X 3 (b3) (M 1 represents boron or aluminum, and X represents a C 1 -C 12 alkoxy group.)
- M 2 X 4 (b4) (M 2 represents silicon, germanium, titanium or zirconium, and X represents a C 1 -C 12 alkoxy group.)
- R 5 and R 6 respectively and independently represent one type of group selected from the group consisting of a C 1 -C 12 alkyl group, C 6 -C 12 aryl group, C 7 -C 12 alkylaryl group and C 1 -C 3 alkoxy or halogen-substituted aryl group. In the case of a plurality of R 5 and R 6 , R 5 and R 6 may be the same or different.
- composition of the present invention allows heat curing treatment at low temperatures, and demonstrates the effect of enabling photopolymerization curing in air even if using a styryl group as a photopolymerizable functional group.
- the photosensitive resin composition of the present invention is characterized by comprising: (A) 100 parts by weight of a photosensitive silicone compound described in (I) below, and (B) 0.1 to 20 parts by weight of a photopolymerization initiator described in (II) below.
- Photosensitive silicon compound obtained by adding to at least one type of silanol compound represented by the following formula (a) (to be referred to as component (a)), a component (b) in the form of at least one type of compound selected from the group consisting of compounds represented by the following general formulas (b1), (b2), (b3) and (b4) (to be referred to as components (b1), (b2), (b3) and (b4)) containing the component (b1) at 10 to 100% in terms of the number of moles, at a ratio of component (a) to component (b) of 40/60 mol% to 60/40 mol%, followed by condensing using a catalyst without aggressively adding water.
- a component (b) in the form of at least one type of compound selected from the group consisting of compounds represented by the following general formulas (b1), (b2), (b3) and (b4) (to be referred to as components (b1), (b2), (b3) and (b4)) containing the component (b1) at 10
- the number of moles of component (b) (number of moles of component (b1) + the number of moles of component (b2)) + (3/2 x number of moles of component (b3)) + (2 x number of moles of component (b4)).
- R 1 represents at least one type of group selected from the group consisting of C 1 -C 12 linear alkyl groups, C 3 -C 12 branched alkyl groups, C 3 -C 12 cyclic alkyl groups, C 6 -C 12 aryl groups, C 7 -C 12 alkylaryl groups and C 7 -C 12 arylalkyl groups.
- R 1 may be the same or different.
- R 2 a R 3 b SiX 4-a-b (b1) R 2 represents a substituent represented by the following formula (1) or (2), R 3 represents a C 1 -C 12 hydrocarbon group, X represents a C 1 -C 12 alkyl group, a represents an integer selected from 1 and 2, b represents an integer selected from 0 and 1, and a + b does not exceed 2. In the case a is 2, R 2 may be the same or different.
- Y represents a C 1 -C 12 hydrocarbon group or a C 1 -C 12 hydrocarbon group containing one or more types of elements selected from the group consisting of oxygen, nitrogen, fluorine and sulfur.
- R 4 a R 3 b SiX 4-a-b (b2) R 4 represents one type of group selected from the group consisting of a linear C 1 -C 12 alkyl group, C 3 -C 12 branched alkyl group, C 3 -C 12 cyclic alkyl group, C 6 -C 12 aryl group, C 7 -C 12 alkylaryl group, C 7 -C 12 arylalkyl group, C 2 -C 7 epoxy group or unsaturated double bond-containing hydrocarbon group, C 1 -C 12 amino group-, ureido group- or mercapto group-containing hydrocarbon group, and C 1 -C 12 fluorine-containing hydrocarbon group, R 3 represents a C 1 -C 12 hydrocarbon group, X represents a C 1 -C 12 alkoxy group, a represents an integer selected from 1 and 2, b represents an integer selected from 0 and 1, and a + b does not exceed 2.
- R 4 may be the same or different.
- M 1 X 3 (b3) (M 1 represents boron or aluminum, and X represents a C 1 -C 12 alkoxy group.)
- M 2 X 4 (b4) (M 2 represents silicon, germanium, titanium or zirconium, and X represents a C 1 -C 12 alkoxy group.)
- (II) At least one type of photopolymerization initiator having a phosphine oxide group represented by the following formula (e).
- R 5 and R 6 respectively and independently represent one type of group selected from the group consisting of a C 1 -C 12 alkyl group, C 6 -C 12 aryl group, C 7 -C 12 alkylaryl group and C 1 - 3 alkoxy or halogen-substituted aryl group.
- R 1 is one type of group selected from the group consisting of a C 1 -C 12 linear alkyl group, C 3 -C 12 branched alkyl group, C 3 -C 12 cyclic alkyl group, C 6 -C 12 aryl group, C 7 -C 12 alkylaryl group and C 7 -C 12 arylalkyl group.
- a C 6 -C 12 aryl group is preferable in terms of yielding a higher refractive index of the cured product.
- An alkylaryl group refers to an aryl group having an alkyl group
- an arylalkyl group refers to an alkyl group having an aryl group.
- R 1 may be the same or different. Specific examples of substituents that can be used for R 1 include an isopropyl group, isobutyl group, cyclohexyl group, phenyl group, tolyl group, xylyl group, trimethylphenyl group and naphthyl group. Those groups that can be used preferably include C 3 or larger branched alkyl groups, C 5 or larger cyclic alkyl groups and phenyl groups, with a phenyl group being most preferable.
- Preferable examples of compounds that can be used for the silanol compound of component (a) include diphenyl silanediol, diisopropyl silanediol, diisobutyl silanediol and dicyclohexyl silanediol.
- Component (b) is at least one type of compound selected from the group consisting of components (b1), (b2), (b3) and (b4), and contains 10 to 100% of component (b1) in terms of the number of moles thereof.
- Component (b1) is an alkoxysilane compound having a styryl group as a photosensitive group.
- substituents that can be used for R 2 include a styryl group, 1-styryl methyl group and 1-styryl ethyl group.
- substituents that can be used for R 3 include a methyl group and ethyl group.
- substituents that can be used for X include a methoxy group and ethoxy group.
- Preferable examples of compounds that can be used for component (b1) include styryl trimethoxysilane, styryl triethoxysilane, styryl methyldimethoxysilane, styryl methyldiethoxysilane, 1-styryl methyltrimethoxysilane, 1-styryl methyltriethoxysilane, 1-styryl ethyltrimethoxysilane and 1-styryl ethyltriethoxysilane.
- Component (b2) is a dialkoxysilane compound or a trialkoxysilane compound.
- substituents that can be used for R 3 include a methyl group and ethyl group.
- substituents that can be used for R 4 include an alkyl group, such as a methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, n-hexyl group or n-decyl group, a cyclic alkyl group such as a cyclopentyl group or cyclohexyl group, an aryl group such as a phenyl group, tolyl group or naphthyl group, an epoxy group-containing group such as a 3-glycidoxy group or 2-(3,4-epoxycyclohexyl)ethyl group, an unsaturated double bond-containing group such as a vinyl group, allyl group
- Preferable examples of compounds that can be used for component (b2) include methyl trimethoxysilane, dimethyl dimethoxysilane, methyl triethoxysilane, ethyl trimethoxysilane, diisopropyl dimethoxysilane, diisobutyl dimethoxysilane, n-octyl trimethoxysilane, n-decyl trimethoxysilane, dicyclopentyl dimethoxysilane, dicyclopentyl diethoxysilane, phenyl trimethoxysilane, diphenyl dimethoxysilane, 3-glycidoxy trimethoxysilane, 3-glycidoxy triethoxysilane, 2-(3,4-epoxycyclohexyl)ethyl trimethoxysilane, vinyl trimethoxysilane, vinyl triethoxysilane, 3-methacryloxypropyl trimethoxysi
- Component (b3) is trialkoxy aluminum or trialkoxy boron.
- substituents that can be used for X include a methoxy group, ethoxy group, n-propoxy group, isopropoxy group, n-butoxy group, isobutoxy group, sec-butoxy group and tert-butoxy group.
- Preferable examples of compounds that can be used for component (b3) include trimethoxy aluminum, triethoxy aluminum, tri-n-propoxy aluminum, triisopropoxy aluminum, tri-n-butoxy aluminum, triisobutoxy aluminum, tri-sec-butoxy aluminum, tri-tert-butoxy aluminum, trimethoxy boron, triethoxy boron, tri-n-propoxy boron, triisopropoxy boron, tri-n-butoxy boron, triisobutoxy boron, tri-sec-butoxy boron and tri-tert-butoxy boron.
- Component (b4) is a tetraalkoxy silane, tetraalkoxy germanium, tetraalkoxy titanium or tetraalkoxy zirconium.
- substituents that can be used for X include a methoxy group, ethoxy group, n-propoxy group, isopropoxy group, n-butoxy group, isobutoxy group, sec-butoxy group and tert-butoxy group.
- the aforementioned photosensitive silicone compound of (A) is a photosensitive silicone compound having a styryl group as a photosensitive group obtained by adding to a silanol compound of the aforementioned component (a) the aforementioned component (b), which is at least one type of compound selected from the group consisting of the aforementioned components (b1), (b2), (b3) and (b4) and which contains 10 to 100%, more preferably 50 to 100% and even more preferably 80 to 100% of the component (b1) in terms of the number of moles thereof, at a ratio of (a)/(b) of 40/60 mol% to 60/40 mol%, followed by condensing using a catalyst without aggressively adding water.
- the number of moles of component (b) (number of moles of component (b1) + the number of moles of component (b2)) + (3/2 x number of moles of component (b3)) + (2 x number of moles of component (b4)).
- Component (b3) has three alkoxy (functional) groups
- component (b4) has four alkoxy (functional) groups.
- components (b1) and (b2) have two or three alkoxy groups, even in the case of having three alkoxy groups, since only two alkoxy groups contribute to the reaction, components (b1) and (b2) are based on having two functional groups.
- the coefficients are applied in the manner of the above formula.
- the ratio of component (a)/component (b) is preferably 40/60 mol% to 60/40 mol%, preferably 45/55 mol% to 55/45 mol%, more preferably 48/52 mol% to 52/48 mol%, and most preferably 50/50 mol%.
- the condensation temperature is 50 to 150°C and preferably 70 to 120°C. During condensation, alcohol formed following heating and refluxing is distilled off under reduced pressure.
- catalysts examples include acidic compounds such as Ti(OR 7 ) 4 , Zr(OR 7 ) 4 , B(OR 7 ) 3 or Al(OR 7 ) 3 , basic compounds such as alkaline earth metal hydroxides, and fluorides such as NH 4 F or NR 7 4 F (wherein, R 7 represents one or more groups selected from the group consisting of C 1 -C 12 linear hydrocarbon groups, C 3 -C 12 branched alkyl groups and C 3 -C 12 cyclic alkyl groups).
- acidic compounds such as Ti(OR 7 ) 4 , Zr(OR 7 ) 4 , B(OR 7 ) 3 or Al(OR 7 ) 3
- basic compounds such as alkaline earth metal hydroxides
- fluorides such as NH 4 F or NR 7 4 F (wherein, R 7 represents one or more groups selected from the group consisting of C 1 -C 12 linear hydrocarbon groups, C 3 -C 12 branched alkyl groups and C 3 -C 12 cycl
- examples of acidic compounds include trimethoxy aluminum, triethoxy aluminum, tri-n-propoxy aluminum, triisopropoxy aluminum, tri-n-butoxy aluminum, triisobutoxy aluminum, tri-sec-butoxy aluminum, tri-tert-butoxy aluminum, trimethoxy boron, triethoxy boron, tri-n-propoxy boron, triisopropoxy boron, tri-n-butoxy boron, triisobutoxy boron, tri-sec-butoxy boron, tetramethoxy titanium, tetraethoxy titanium, tetra-n-propoxy titanium, tetraisopropoxy titanium, tetra-n-butoxy titanium, tetraisobutoxy titanium, tetra-sec-butoxy titanium, tetra-tert-butoxy titanium, tetramethoxy zirconium, tetraethoxy zirconium, tetra-n-propoxy zirconium, tetra
- Examples of basic compounds include barium hydroxide, sodium hydroxide, potassium hydroxide, strontium hydroxide, calcium hydroxide, magnesium hydroxide, ammonium hydroxide, tetramethyl ammonium hydroxide, tetrabutyl ammonium hydroxide and triethylamine.
- fluorides examples include ammonium fluoride, tetramethyl ammonium fluoride and tetrabutyl ammonium fluoride.
- At least one type selected from the group consisting of tetraisopropoxy titanium (titanium isopropoxide), barium hydroxide, strontium hydroxide, calcium hydroxide and magnesium hydroxide is used preferably.
- the amount of catalyst used is 0.01 to 10% by weight and preferably 0.1 to 5% by weight based on the total weight of the silanol compound of component (a) and the component (b). From the viewpoint of progression of the reaction, the amount of catalyst used is 0.01% by weight or more. From the viewpoint of the mechanical characteristics of the cured film the amount of catalyst is 10% by weight or less. Furthermore, component (b3) in the form of trialkoxy aluminum or trialkoxy boron, and component (b4) in the form of tetraalkoxy titanium or tetraalkoxy zirconium also function as catalysts.
- component (a) is diphenyl silanediol and the component (b) consists only of styryl trimethoxysilane of component (b1), for example, the structure of the condensate formed is linear in the manner of the following formula (i).
- R 5 and R 6 respectively and independently represent one type of group selected from the group consisting of a C 1 -C 12 alkyl group, C 6 -C 12 aryl group, C 7 -C 12 alkylaryl group and C 1 -C 3 alkoxy or halogen-substituted aryl group, and in the case of a plurality of R 5 and R 6 , R 5 and R 6 may be the same or different).
- any photopolymerization initiator having a phosphine oxide group represented by formula (e) above can be used for the photopolymerization initiator of (B), specific examples include bis(2,4,6-trimethylbenzoyl)phenyl phosphine oxide (trade name: Irgacure 819), bis(2,6-dimethoxybenzoyl)- 2,4,4-trimethylpentyl phosphine oxide (trade name: CGI403), and 2,4,6-trimethylbenzoyldiphenyl phosphine oxide (trade name: Darocure TPO).
- the amount of these photopolymerization initiators added is 0.1 to 20 parts by weight, preferably 0.2 to 10 parts by weight and more preferably 0.2 to 5 parts by weight based on the aforementioned photosensitive silicone of (A).
- the amount added is 0.1 parts by weight or more from the viewpoint of sensitivity, and 20 parts by weight or less from the viewpoint of mechanical properties.
- a photopolymerization initiator other than the aforementioned (B) can be added within a range that does not exceed 10% by weight of (B) for use as a photopolymerization initiator.
- photopolymerization initiators other than (B) include the compounds indicated below:
- photopolymerization initiators can be used together with a photopolymerization sensitizer.
- photopolymerization sensitizers include 4,4'-bis-ethylaminobenzophenone, 1-phenyl-1H-tetrazole-5-thiol and 2,2'-(phenylimino)diethanol. These compounds may be used alone or two or more types may be mixed together.
- the amount added is preferably 1 to 100 parts by weight and more preferably 1 to 60 parts by weight based on the weight of the photopolymerization initiator.
- a compound having two or more polymerizable unsaturated bonding groups can also be added as a crosslinking monomer.
- a polyfunctional (meth)acrylic compound able to be polymerized by the action of the photopolymerization initiator is preferable for the crosslinking monomer, examples of which include polyethylene glycol diacrylate (number of ethylene glycol units: 2 to 20), polyethylene glycol dimethacrylate (number of ethylene glycol units: 2 to 20), poly(1,2-propylene glycol) diacrylate (number of 1,2-propylene glycol units: 2 to 20), poly(1,2-propylene glycol) dimethacrylate (number of 1,2-propylene glycol units: 2 to 20), polytetramethylene glycol diacrylate (number of tetramethylene glycol units: 2 to 10), polytetramethylene glycol dimethacrylate (number of tetramethylene glycol units: 2 to 10), 1,4-cyclohexane di
- an adhesion assistant can also be added for the purpose of improving adhesion between the photosensitive silicone compound and the base material.
- adhesion assistants that can be used include alkoxysilane compounds such as 3-methacryloxypropyl trimethoxysilane or 3-acryloxypropyl trimethoxysilane. These compounds may be used alone or two or more types may be mixed together.
- the added amount is preferably 0.1 to 20 parts by weight and more preferably 0.5 to 10 parts by weight based on the weight of the photosensitive silicone compound of (A).
- the photosensitive resin composition containing the photosensitive silicone compound of (A) and the photopolymerization initiator of (B) can be obtained by reacting the photosensitive silicone compound of (A) with the photopolymerization initiator of (B) in the absence of solvent, in the case of using a solvent, the photosensitive resin composition can be produced by codissolving in propyl acetate.
- the solvent used at this time dissolves both the photosensitive silicone compound of (A) and the photopolymerization initiator of (B), and specific examples thereof include N,N-dimethylformamide, N-methyl-2-pyrrolidone (NMP), N-ethyl-2-pyrrolidone, tetrahydrofuran, N,N-dimethylacetoamide (DMAc), dimethylsulfoxide, hexamethylphosphorylamide, pyridine, cyclopentanone, ⁇ -butyrolactone (GBL), ⁇ -acetyl- ⁇ -butyrolactone, tetramethyl urea, 1,3-dimethyl-2-imidazoline, N-cyclohexyl-2-pyrrolidone, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, methyl ethyl ketone, methyl isobutyl ketone, anisole, ethyl acetate
- the formation of a cured relief pattern is carried out by a method at least comprising a step for obtaining a coated film by coating the aforementioned photosensitive resin composition onto a base material, a step for photocuring an exposed portion by radiating active light onto the coated film, a step for removing an uncured portion of the film using a developing solution, and a step for heating the photocured film, in that order.
- Examples of the base material include various base materials as desired, such as a silicon wafer, ceramic substrate, aluminum substrate and other base materials.
- Examples of methods for coating the photosensitive resin composition onto the base material include coating with a spin coater, bar coater, blade coater, curtain coater or screen printer, as well as spray coating with a spray coater.
- the thickness of the coated film is preferably 1 to 100 ⁇ m and more preferably 2 to 50 ⁇ m.
- the resulting coated film is dried by air-drying, heat drying with an oven or hot plate, or vacuum drying.
- the coated film obtained in this manner is then exposed to ultraviolet light in air using an exposure device such as a contact aligner, mirror projection system or stepper after having soft-baked the coated base material at 80 to 200°C.
- an exposure device such as a contact aligner, mirror projection system or stepper
- i-rays are preferable for the optical wavelength while a stepper is preferable for the exposure device.
- post-exposure baking PEB
- pre-development baking pre-baking
- PEB post-exposure baking
- pre-exposure baking pre-development baking
- Development can be carried out by selecting arbitrarily selecting a method from conventionally known photoresist development methods such as a rotary spray method, paddle method or immersion method in combination with ultrasound treatment.
- a combination of a good solvent and a poor solvent with respect to the photosensitive silicone compound of (A) is preferable for the developing solution used.
- good solvents include N-methylpyrrolidone, N-acetyl-2-pyrrolidone, N,N'-dimethylacetoamide, cyclopentanone, cyclohexanone, ⁇ -butyrolactone, ⁇ -acetyl- ⁇ -butyrolactone and propylene glycol monomethyl ether acetate
- examples of poor solvents include toluene, xylene, methanol, ethanol, isopropyl alcohol, propylene glycol monomethyl ether and water.
- the ratio of poor solvent to good solvent is adjusted according to the solubility of the photosensitive silicone compound of (A). Each of these solvents can also be used in combination.
- washing is carried out using a rinsing solution to remove the developing solution and allow the obtaining of a coated film with a relief pattern.
- Distilled water, methanol, ethanol, isopropanol or propylene glycol monomethyl ether and the like can be used alone or after suitably mixing for the rinsing solution, or these can also be used after combining in a stepwise manner.
- the base material adhered with the cured relief pattern is heated to 100°C or higher to carry out heat treatment by causing unreacted styryl groups to bond.
- the heating temperature is preferably 100 to 300°C. A temperature of 100°C or higher is preferable from the viewpoint of allowing the reaction of unreacted double bonds to proceed during heating, while a temperature of 300°C or lower is preferable from the viewpoint of preventing thermal degradation.
- the heating time is preferably 0.5 to 5 hours. Heating can be carried out with a hot plate, oven or temperature-programmable heating oven. Air may be used for the atmospheric gas during heating, or an inert gas such as nitrogen or argon can be used.
- Various types of semiconductor devices can be produced by selecting the cured relief pattern from a group consisting of a surface protective film, interlayer insulating film and ⁇ -ray shielding film for the semiconductor devices formed on a base material such as a silicon wafer, and applying a commonly semiconductor device production method for the other steps.
- a photopolymerization initiator in the form of Darocure TPO manufactured by Ciba Specialty Chemicals Inc. (2,4,6-trimethylbenzoyldiphenyl phosphine oxide) was dissolved in 100 parts by weight of the synthesized photosensitive silicone compound while stirring to prepare a photosensitive resin composition (to also be referred to as a "varnish").
- This varnish was spin-coated onto a silicon wafer using a spin coater followed by pre-baking for 6 minutes at 120°C. Continuing, the entire resin surface was exposed in an air atmosphere using an i-ray exposer (Canon Inc., PLA Exposer) (exposure: 500 mJ/cm 2 ). When this was spin-developed using propylene glycol monomethyl ether acetate (PGMEA) for the developing solution, the residual film rate as determined from the difference in film thickness before and after development was 70%. Although this developed film was finished being cured by heat-treating for 3 hours at 180°C in an N 2 atmosphere, film thickness loss was not observed during the course of this heat treatment.
- PGMEA propylene glycol monomethyl ether acetate
- a photosensitive silicone compound was synthesized and a photosensitive resin composition was prepared and evaluated in the same manner as Example 1 with the exception using 0.001 moles of barium hydroxide for the solvent instead of 0.011 moles of titanium tetraisopropoxide. At this time, the residual film rate following exposure and development was 70%. Although this developed film was finished being cured by heat-treating for 3 hours at 180°C in an N 2 atmosphere, film thickness loss was not observed during the course of this heat treatment.
- a photosensitive silicone compound was synthesized and a photosensitive resin composition was prepared and evaluated in the same manner as Example 1 with the exception using CGI 403 manufactured by Ciba Specialty Chemicals Inc. (bis(2,6- dimethoxybenzoyl)-2,4,4-trimethylpentyl phosphine oxide) for the photopolymerization initiator instead of Darocure TPO.
- CGI 403 manufactured by Ciba Specialty Chemicals Inc.
- Ciba Specialty Chemicals Inc. bis(2,6- dimethoxybenzoyl)-2,4,4-trimethylpentyl phosphine oxide
- the residual film rate following exposure and development was 50%.
- this developed film was finished being cured by heat-treating for 3 hours at 180°C in an N 2 atmosphere, film thickness loss was not observed during the course of this heat treatment.
- a photosensitive silicone compound was synthesized and a photosensitive resin composition was prepared and evaluated in the same manner as Example 1 with the exception of using Irgacure 819 manufactured by Ciba Specialty Chemicals Inc. (bis(2,4,6-trimethylbenzoyl)phenyl phosphine oxide) for the photopolymerization initiator instead of Darocure TPO.
- Irgacure 819 manufactured by Ciba Specialty Chemicals Inc. (bis(2,4,6-trimethylbenzoyl)phenyl phosphine oxide) for the photopolymerization initiator instead of Darocure TPO.
- the residual film rate following exposure and development was 40%.
- this developed film was finished being cured by heat-treating for 3 hours at 180°C in an N 2 atmosphere, film thickness loss was not observed during the course of this heat treatment.
- a photosensitive resin composition was prepared and evaluated in the same manner as Example 1 with the exception of using RF11 purchased from Fraunhofer ISC of Germany (photosensitive silicone compound obtained by condensing diisobutyl silanediol and styryl methyl diethoxide using a catalyst without aggressively adding water) for the photosensitive silicone compound instead of that synthesized in Example 1.
- RF11 purchased from Fraunhofer ISC of Germany
- photosensitive silicone compound obtained by condensing diisobutyl silanediol and styryl methyl diethoxide using a catalyst without aggressively adding water
- the residual film rate following exposure and development was 60%.
- this developed film was finished being cured by heat-treating for 3 hours at 180°C in an N 2 atmosphere, film thickness loss was not observed during the course of this heat treatment.
- a photosensitive silicone compound was synthesized and a photosensitive resin composition was prepared and evaluated in the same manner as Example 1 with the exception of using Irgacure 369 manufactured by Ciba Specialty Chemicals Inc. (2-benzyl- 2-dimethylamino-1-(4-morpholinophenyl)-butanone-1) for the photopolymerization initiator instead of Darocure TPO. At this time, the residual film rate following exposure and development was 0%.
- a photosensitive silicone compound was synthesized and a photosensitive resin composition was prepared and evaluated in the same manner as Example 1 with the exception of using Irgacure 127 manufactured by Ciba Specialty Chemicals Inc. (2-hydroxy- 1- ⁇ 4-[4-(2-hydroxy-2-methylpropionyl)-benzyl]-phenyl ⁇ -2- methylpropan-1-one) for the photopolymerization initiator instead of Darocure TPO. At this time, the residual film rate following exposure and development was 0%.
- a photosensitive silicone compound was synthesized and a photosensitive resin composition was prepared and evaluated in the same manner as Example 1 with the exception of using Irgacure OXE02 manufactured by Ciba Specialty Chemicals Inc. (1-[9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl]-1-(O- acetyloxime)) for the photopolymerization initiator instead of Darocure TPO. At this time, the residual film rate following exposure and development was 0%.
- a photosensitive resin composition was prepared and evaluated in the same manner as Example 5 with the exception of using Irgacure 369 manufactured by Ciba Specialty Chemicals Inc. (2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)- butanone-1) for the photopolymerization initiator instead of Darocure TPO. At this time, the residual film rate following exposure and development was 0%.
- the present invention can be preferably used in the field of photosensitive insulating films used electronic materials such as semiconductor devices or multilayer wiring boards.
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PCT/JP2008/055480 WO2008123210A1 (ja) | 2007-04-04 | 2008-03-25 | 感光性樹脂組成物 |
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US (1) | US8557498B2 (de) |
EP (1) | EP2133744B1 (de) |
JP (1) | JP5144646B2 (de) |
KR (1) | KR101121936B1 (de) |
CN (1) | CN101646978B (de) |
AT (1) | ATE516519T1 (de) |
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WO (1) | WO2008123210A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8475996B2 (en) | 2007-12-14 | 2013-07-02 | Asahi Kasei E-Materials Corporation | Photosensitive resin composition |
EP3243845A1 (de) * | 2016-05-13 | 2017-11-15 | Ricoh Company, Ltd. | Mit aktiver strahlung härtbare zusammensetzung, gehärtetes produkt, zusammensetzungs-lagerbehälter, vorrichtung zur erzeugung zwei- oder dreidimensionaler bilder, vorrichtung und verfahren zur erzeugung zwei- oder dreidimensionaler bilder |
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JP5576622B2 (ja) * | 2008-07-01 | 2014-08-20 | 旭化成イーマテリアルズ株式会社 | 感光性樹脂組成物 |
JP5607898B2 (ja) * | 2008-07-01 | 2014-10-15 | 旭化成イーマテリアルズ株式会社 | 感光性樹脂組成物 |
EP2223957B1 (de) * | 2009-01-13 | 2013-06-26 | Korea Advanced Institute of Science and Technology | Transparente Verbundwerkstoffverbindung |
JP5636869B2 (ja) * | 2010-10-20 | 2014-12-10 | Jsr株式会社 | 感放射線性組成物、硬化膜、及びそれらの形成方法 |
EP2665762B1 (de) * | 2011-01-21 | 2020-12-02 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Polymerisierbare zusammensetzungen, damit hergestellte gehärtete produkte sowie verwendung dieser materialien |
KR102232349B1 (ko) | 2013-05-31 | 2021-03-26 | 롬엔드하스전자재료코리아유한회사 | 고내열성 네거티브형 감광성 수지 조성물 및 이로부터 제조된 경화막 |
US10254649B2 (en) * | 2013-10-21 | 2019-04-09 | Tokai University Educational System | Method for producing optical waveguide |
JP6603115B2 (ja) * | 2015-11-27 | 2019-11-06 | 信越化学工業株式会社 | ケイ素含有縮合物、ケイ素含有レジスト下層膜形成用組成物、及びパターン形成方法 |
CN110221731B (zh) * | 2018-03-02 | 2023-03-28 | 宸鸿光电科技股份有限公司 | 触控面板的直接图案化方法及其触控面板 |
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- 2008-03-25 WO PCT/JP2008/055480 patent/WO2008123210A1/ja active Application Filing
- 2008-03-25 AT AT08738789T patent/ATE516519T1/de not_active IP Right Cessation
- 2008-03-25 EP EP08738789A patent/EP2133744B1/de not_active Not-in-force
- 2008-03-25 JP JP2009509102A patent/JP5144646B2/ja not_active Expired - Fee Related
- 2008-03-25 CN CN2008800101518A patent/CN101646978B/zh not_active Expired - Fee Related
- 2008-03-25 KR KR1020097018975A patent/KR101121936B1/ko active IP Right Grant
- 2008-03-27 TW TW097111085A patent/TW200905400A/zh not_active IP Right Cessation
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EP3243845A1 (de) * | 2016-05-13 | 2017-11-15 | Ricoh Company, Ltd. | Mit aktiver strahlung härtbare zusammensetzung, gehärtetes produkt, zusammensetzungs-lagerbehälter, vorrichtung zur erzeugung zwei- oder dreidimensionaler bilder, vorrichtung und verfahren zur erzeugung zwei- oder dreidimensionaler bilder |
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US8557498B2 (en) | 2013-10-15 |
CN101646978B (zh) | 2011-11-02 |
KR20100009536A (ko) | 2010-01-27 |
EP2133744A4 (de) | 2010-06-16 |
TWI375125B (de) | 2012-10-21 |
JP5144646B2 (ja) | 2013-02-13 |
ATE516519T1 (de) | 2011-07-15 |
CN101646978A (zh) | 2010-02-10 |
JPWO2008123210A1 (ja) | 2010-07-15 |
TW200905400A (en) | 2009-02-01 |
WO2008123210A1 (ja) | 2008-10-16 |
EP2133744B1 (de) | 2011-07-13 |
KR101121936B1 (ko) | 2012-03-09 |
US20100104827A1 (en) | 2010-04-29 |
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